Method of deodorizing



s trogenous substances. e

treat the; r2?

rr m tiqn mashe Th1 's invention. is concerned"itith metho nded s lmae end is ret culs lr te d W erdsd s y s hed ees eable v :s ph d s aoxidesjsj sr si s r the pu se ctio Disagreeable odors occasioned by the putrefaction of nitrogenousmaterials such as proteins and the like hate been destroyed by oxidizing the chemical com ounds caussimilar propert es; H Another method; of overifis the nuisance of c od r a to jmask them" withgchemicals such assu1phO naphtholjphenol; or phenolic compoundst;

, Under certain conditions the above; methods and materials are open to objection. Certain of them are toxic and strongly corrosive. Others are unstable and the v possess a ch; myth :d ls o .febricsaand convenientto handle.-

estroying the disagreeable odors, particualarly those caused y the putrefa'ction or nitrogenous substances, I the invention is to furnish a method for deodorizing decayed or decaying animal or vegetable firoductswith a material whichis stanti'a y neutral in reaction andJmh mummr to fabrics or corrosive towetdsw met'als, and .which is not strongly toxic:

I Objects apparent from the;

T Briefly stated the inventionlcomprrsw,

"I' treating animal. or vegetable products with compounds of the type a tms w t-mes ten m of h irs-seems such as oxygen or, sulphur and t jana are bivalent elements or groups. I QM OPQ :PBrwl rl yt;

y setebliele d lrhi ng :th d rs by m Q c ime M or hypochlorite. a It has also been i the-precast tice, to absorb such ioul odors with; actives 1 carbong'silica gel or other material-thawing;

strongly,acidorggstrongly elk] ine;,reactin. f

y .o o metals!Othrs' or these materials areznotwsulphlde ing60 T mattress s ii r e "ifs-5W1, sow e a cheapand convenientcme hodaot pr e insc ni e le d a 31 23 de ay: 0t elr edr 1n asta epfde'cay with non-nitrogenous 5,. phides 01- oxides which the;

' ll- W "ration To run swam Uf-EQ-A ooona'rrom or com this; ,89,288.

asthma the disulphide, sulphide or-pxidQQI; dioxide is doubly bonded to an llelement or J group, as for example oxy nor- .'mal; butyl thiocarbomc acid disulphide, acyl l hepreferred; deodorizing material is oxy normal butyl thiocarbonic acid disul hide,

whiphfijisirepresentative of a class 0 substanc inch; contain the grouping foossco thiocarbonic acid phideinay be used in solution or in a dis- ,persion or in other manner desired. suitable dispersion' may be made by dissolvingBQ pfirtsoffglue in parts of water 'j T heatedover ay steam bath. Into the glue solution is .then stirred part by weight 'oflsodiumoleate employed. :Asol

normalg butyl thiocarbonic acid'di- :v a parts by weight of solvent naphtha isthen addedslowly to the glue a; high speed stirrer being ution of 30 parts by weight solution, meanwhile stirring with a high speed stirreriand continuing until the emul-'-' sion is. stable. Afdispersionof the disulphide in-glue and, -.wate r may be made without first Another object of I iOther lprotective colloids may be employed lying the disulphide in solvent naphtha.

t tag sjglu stated above the oxy lmal but l-athiocarbonic acid disulphide ms-y'beuse ass solution in an organic solvent, or it inay he" also employed in its un= v diluted form? =---The dispersion above described may be poured yoyer the decayedor utrefie'd animalor ve'getablegmatter or com ined with it in any suitable manner; In general an amount of "disulphide equivalent to approximately 1% of the weiht of the decaying or decayed material ill found sufiicientto destroy but. larger. ;or; smaller 1' amounts may be employed if desired; :2

slaughter house wastes. The dispersion may likewise ibe used tondestroy the foul odors the disagreeable odors arising from putre-. v 1 ii/faction of-the cnitrogenous material therein,- where R and RF. re-. -mtre news; s

I f mayikbetemployed to deodorize v .zlieitilizers,i; ;garbage;. sewage glue and which arise in rubberf latex, particularly when the proteins contained therein have undergone decomposition. The aqueous dispersion of oxy normal butyl tlllOCElIbtJIllC acid disulphide may be simply stirred 1nto ithe latex and distributed uniformly throughout the latex, 1% on the weight of the rub her being a sufiicient quantity of the disulphide. Inasmuch as the disulphide possesses a substantially neutral reaction, 1t may be added to rubber latex without fear of its causing coagulation or any other deleterious reactions in the latex.

Evil smellin rubbers may be soaked in a dispersion o oxy normal butyl thiocarbonic acid disulphide containing 1 part of the disulphide per 100 parts of water. Pref-- erably the rubber to be treated is not more than A in thickness.

While in general the substances which are subject to decomposition comprise animal or vegetable proteinogenous bodies, such as flesh and vegetation, it is understood that the invention is not limited to the application of this new class of deodorizers to the materials above mentioned.

Instead of'oxy normal butyl thiocarbonic acid disulphide, the following compounds may be emplo ed: oxy ethyl thiocarbonlc acid disulphi e, dithiobenzoyldisulphlde, benzoyl peroxide, acid anhydrides or thioacid anhydrides, tetra sulphides prepared by the interaction ofsulphur chloride with salts of non-nitrogenous dithioacids. Benzoyl peroxide is somewhat soluble in water and may be employed therefore in an aqueous solution. Furthermore its decomosition products are substantially odoress, whereas oxy normal butyl thiocarbonio acid disulphide may give rise to some odor, although this will not be as strong as those of the phenols, etc.

The property of deodorizing the putrefaction roducts of nitrogenous material is exhibite by compounds of the type RENE/351R where (R'),(JR'

I claim and desire to protect by Letters Patent is:

1. The process of deodorizing the putre faction products of nitrogenous material which consists in adding to such material compounds of the type where R and R represent non-nitrogenous substitutions, R at least one atom of the oxygen group and w and 3 any bivalent substitution. v

2. The process of deodorizing the putrefaction products of nitrogenous material which consists in adding to such material compounds of the type RC(S,)OR', I

II ll 9; 3/

where R and R are non-nitrogenous substitutions, and w and y are bivalent substitutions, and where the value of n in (8,) is at least one.

3. The process of deodorizing the putrefaction products of nitrogenous material which consists in adding to such material compounds of the type Bosses, ll ll where R and R are non-nitrogenous substitutions and w and y are bivalent substitutions.

4. The process of deodorizing the putrefaction products of nitrogenous material which consists in adding to such material compounds of the type ROSSGR',

ll ll 1/ where R and R are non-nitrogenous substitutions and w and 3 atoms of the oxygen group.

5. The process of deodorizing the putrefaction products of nitrogenous material which consists in adding to such material compounds of the type ROSSOR,

Where R and R substitutions.

6. The process of deodorizing the putrefaction products of nitrogenous material which consists in adding to such material non-nitrogenous organit disulphides containing more than one r on atom and in whose structure there is a double bond adjacent a carbon atom.

7. The process of deodorizing the putrefaction products of nitrogenous material represent non-nitrogenous Y which consists in adding to such material compounds of the type I RCEBCR', I

where R and R comprise the same nonnitro 'enous group.

' 8. he process of deodorizing the putrefaction products of nitrogenous material which consists in adding to such material 9 non-nitro enous derivatives of thioca'rbonic acid disufphides.

9. The process of deodorizingthe putrefaction products of nitrogenous material 15 which consists in adding to such material oiydnormal butyl thiocarbonic acid disul- Signed at New York, count and State of New York, this 9th day of ebruary, 1926.,

SIDNEY M. CADWELL. 

